No indication of output file for typical case

[mlcollard]

The following (reasonable) command appears to do nothing:

./stereotype example.xml

I do see a file, example.xml.annotated.xml appear, but the command does not tell me that.

When the output is the default file, there should be a message from the command indicating the name of the output file.

[aalramadan]

I have added a message for the default file. For example, if the input file is called example.xml, the message will be:
Output file stored in: example.stereotypes.xml

For the other two options, that is, overwrite and selecting a custom filename, no message is shown.